1: 13.0 g / sodium carbonate / methanol; H2O / 1) room temperature, 2) reflux, 2 h 2: 5.0 g / H2 / Adam's catalyst / ethyl acetate View Scheme

Multi-step reaction with 4 steps 1: 13.0 g / sodium carbonate / methanol; H2O / 1) room temperature, 2) reflux, 2 h2: 5.0 g / H2 / Adam's catalyst / ethyl acetate3: 1.2 g / t-butylhypochlorite / benzene / 2 h / in the dark4: AgBF4 / diethyl ether; benzene